Lubricator



May 5, 1931. E. F. TERRY, JR 1,804,186

LUBRICATQR Filed June 13, 1327 L9. .z'wd/zzwm fi.

Patented May 5, 1931 STATES PATENT; oFioa EDWARD F. TERRY, JB., OFDENVER, COLORADO, ASSIGNOR, BY MESNE ASSIGNMENTS TO THE GARDNER-DENVERCOMPANY, OF QUINCY, ILLINOIS, A CORPORATION OF DELAWARE LUBRIGATORApplication filed June 13,

i The present invention relates to line lubricators vof the general typedisclosed in my prior applications Serial Nos. 88,866, filed February17, 1926 and 117,118, filed June fl 19, 1926. The object is to providean even more simple structure than those heretofore disclosed, makingthe device peculiarly useful in connection with small hose lines and thesmaller types of tools. Obviously, how- 10 ever, its size is notparticularly important,

20 ing and indicator,

Figure 4: is a vertical sectional view through the lubricant and airdirecting stem,

Figure v5 is a bottom plan view of the same,

Figure 6 is a side elevation of the lower portion of the stem, showingthe retainer in place thereon,

Figure 7 is a bottom plan view of the screen,

Figure 8 is a view in elevation of the stem turning key,

Figure 9 is a plan View of the pendulum.

In the embodiment disclosed, a casing 9 is employed that is preferablycast of a single piece, and is provided with end extensions 10internally threaded and constituting nipples for the couplings of a hoseline. The casing encloses a lubricant reservoir 11' and is provided atone side with an outstanding nipple 12 of relatively large size,providing a filling opening 13, the walls of which are internallythreaded. A, screw plug 14 serves to close the opening 13. Within thecasing is a pendulum 15 having a passageway 16 in its upper portion andthe weighted part of said pendulum being below the passageway. Avertically disposed bore 17 is formed centrally through the pendulum andhas an enlarged counterbore 18 at its lower'end, tanning a recessed1927. Serial No. 198,577.

seat. Rotatably mounted in the bore 17 is a cylindrical stem 19 thatprojects well above the pendulum member and .yet is sufliciently shortso that it will swing freely around within the casing wall. The lowerend of this stem has a central riveted element 20 terminating in ashoulder 21, and on this element is fixed a retaining washer 22 formedwith peripheral recesses 23 thatserve to permit the passage ofthelubricant. The washer is retained in place by upsetting the end of therivet element, as indicated in Figure 6, below said retaining washer.22. There is placed in the seat 18 porous packing material 24, and thismaterial is held in place by a bottom washer 25 having open ings 26therethrough and held in place by upsetting the material of the pendulummember around the seat, as shown at 27.

The pendulum is mounted in place by a pair of bushing sleeves 28 pressedinto the inner ends of the openings of the nipple 10 and engaged in theends of the passageway 16, said bushing sleeves terminatingsubstantially at the stem 19, and with the opening 16 forming apassageway between the two nipples 10. The bores of the inner ends ofthe bushing sleeves are flared, as shown at 29. I

The stem 19 is provided with a transverse opening 30 that extendsentirely there.- through and has its ends preferably located in theflared portions 29 of the bores of the bushing sleeves 28. Extendingfrom this transverse opening through theupper end of the stem arelongitudinal bores 31 that thus open into the top of the lubricantchamber and constitute means for supplying air or fluid from thepassageway into the said chamber. Above the opening 30 the stem isprovided with another transverse opening 32, preferably at right anglesto the first opening, and from this opening 32 longitudinal bores 33extend to and open through the lower end of the stem,the bores 33, it

will be noted, being out of line with the bores 31. I 3

The rim of the nipple 12 has marked thereon'ascale 34 terminating in thewords Off and On. A key-35 is provided,,

having a pair of prongs 86 that are adapted to engage in the upper endsof the bores 31, so that the stem can be turned. This key hasoutstanding finger pieces 37, one of which, as shown in Figure 3, isadapted to overlie the scale 34. and thus the position of the stem canbe readily determined.

In the operation of this device, it has been found that when the stemisin the position with the. transverse opening 30 longitudinally of thefluid passageway and the opening 32 at right angles thereto, thegreatest flow of lubricant will take place, and as the lubricantflowsoutot the; ends of the opening 32, it is caught in the air or fluid streamand vaporized, being thereby ca tied in varizied. condition to the toolthat is operated by the fluid. If, however, the stem istumnechto"azright'angular position or with the opening 32 longitudinallyof the air passageway and the opening 30 at right angles thereto, theflow of lubricant is completely cutofi; Of course any intermediateposition will give a proportionate flow of lubricant between zero andthe full amount and therefore the scale in connection with thevturningkey constitutes means by which this flow can be readily predetermined.

It .will be noted that in this structure the pendulum, while of greaterarea than the cross-sectional'area of the openings through the endnipples 10, is less than the area of the" filling opening. Therefore thependulunri in: assembled condition, or in other words-with the stem init can be introduced into the casing and the sleeves 28 afterwardsplaced imposition to form a mounting for the same. l

From the foregoing, it is thought that the construction, operation andmany advantages of'thehereindescribed invention will be a parent tothose skilled in the art, without turther description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction: may be resorted to without departing from thespirit or sacrificing any or" the ad vantages of the herein describedinvention.

What-Iclaim, is:

1. In a lubricator, the combination with a casing having'a'lubricantreservoir and opposite fluid ports, of a member separate from the casingin the casing and interposed between the ports-and having a passagewayin. communication with said ports, means in the member for directinglubricant from the reservoir into the passageway, said casing having anopening between the ports of sufficient size to permit the passage ofthe membe! into the: casing, means movable with respect to both thecasing and member for mounting the member in the casing afteritsinsertion, and a closure for said opening.

2. In a lubricator, the combination with a casing, having a lubricantreservoir and opposite fluid ports, of a member separate from the casingin the casing and interposed between the ports and having a passagewayin communication with said ports, a stem mounted in the member andhaving ports that provide means for directing lubricant from thereservoir into the passageway, said casing having an opening between theports of suflicient size to permit the passage of the member into thecasing, means movable with respect to both the casing and member formounting the member in the casing after its insertion, anda closure forsaid opening,

said stem being accessible through the open ingwhen-the closure isremoved.

3. In a lubricator, the combination with a casing, having a lubricantreservoir and opposite fluid ports, of a swinging pendulum member in thecasing between the ports and having a passageway in communication withsaid ports, means in the pendulum member for directing lubricant fromthe reservoir into the passageway, said casing having an opening betweenthe ports that is large enough to permit the passage of the pendulummember, sleeves fitted into the ports and engaging the pendulum memberto form journals therefor, and a closure for said opening.

4:. A lubricator comprising a casing providing a lubricant reservoir andhaving opposite end ports and a side opening, a pendulum of sufficientlysmall area to pass through the side opening, means for journaling thependulum in the casing after its insertion and providing a fluidpassageway through the reservoir from one end opening to the other,means carried by the pendulum for directing lubricant from the reservoirinto the passageway, and a closure for the side openin 5. A lubricatorcomprising a casing providing a lubricant reservoir and having. oppositeend ports and a side opening, a endulum of a width less than the length0 the reservoir and a length less than the width of the reservoir, saidpendulum being small enough to pass through the side opening, tubularmeans fitting in the end opening of the casingand constituting trunnionsfor the pendulum, said means and pendulum having a fluid passagewaybetween the openings, means carried by the pendulum for directinglubricant from the reservoir into the passageway, and a closure for theside opening.

6. A lubricator comprising a casing form-' ing a lubricant reservoir andhaving a side filling opening. and a closure for the opening, a pendulumswung within the casing and having a fluid passageway therethrough, astem rotatably mounted on the pendulum and having one end accessiblethrough the filling opening, said stem having means for directinglubricant from the reservoir into the passageway, means for rotating thestem on the pendulum, and indicating means for positioning the stemformed on the casing.

7 A lubricator comprising a casing forming a lubricant reservoir andhaving a side filling opening and a closure for the opening, a pendulumswung within the casing and having a fluid passageway therethrough, astem rotatably mounted on the pendulum and having one end accessiblethrough the filling opening, said stem having means for directinglubricant from the reservoir into the passageway, a key that detachablyengages the 'stem for rotating the same, said key constituting apointer, and a scale formed on the casing and with which the pointercoacts todetermine the position of the stem.

8. A lubricator comprising a casing forming a lubricant reservoir, apassageway for fluid through the casing, a stem rotatably mounted in thepassageway and intersecting the passageway, said stem having transverseopenings entirely therethrough at diflerent points and opening into thefluid passageway, and oppositely extending bores extending from thetransverse openings through opposite ends of the stem and opening intoopposite portions of the lubricant reservoir.

9. A lubricator comprising a casing forming a lubricant reservoir, apendulum journaled within the casing and having a fluid passagewaytherethrough, a stem rotatably mounted in the pendulum and intersectingthe passageway, transverse openings entirely through the portion of thestem that is in the passageway, oppositely extending bores in the stemextending from the transverse openings through the ends of the stem,means at the lower end of the pendulum for securing the stem in place inthe pendulum, and said casing having a filling opening through which theother end of the stem is available to rotate it.

In testimony whereof, I afiix my signature.

EDWARD F. TERRY, JR.

